.k-collapse {
    background-color: #fafafa;
    border: 1px solid #d9d9d9;
    border-radius: @radius;
    border-bottom: 0;
    overflow: hidden;
    &>.k-collapse-item {
        border-bottom: 1px solid #d9d9d9;
        &>.k-collapse-header {
            line-height: 22px;
            padding: 12px 0 12px 40px;
            cursor: pointer;
            position: relative;
            &>i {
                position: absolute;
                left: 16px;
                top: 0;
                line-height: 46px;
                transform: rotate(0);
                transition: transform .3s ease-in-out;
            }
        }
        .k-collapse-content {
            background-color: #fff;
            border-top: 1px solid #d9d9d9;
            padding: 0 16px;
            transition: height .3s ease-in-out,opacity .3s ease-in-out;
            box-sizing: border-box;
            overflow: hidden;
            .k-collapse-content-box {
                padding: 16px 0;
            }
        }
    }
    &>.k-collapse-item-active {
        &>.k-collapse-header>i {
            transform: rotate(90deg);
        }
    }
}

.k-collaplse-sample {
    border: none;
    background: none;
    .k-collapse-item {
        background: #f5f5f5;
        border: none;
        margin-bottom: 10px;
        border-radius: @radius;
        overflow: hidden;
        .k-collapse-content {
            border: none;
            background: none;
        }
    }
}